DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt

Certificate Information

Subject
CN=challenger.run
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 01, 2026
Valid Until
June 30, 2026 44 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B0:24:99:A5:6F:80:DB:D9:2A:93:23:DB:E7:2B:32:5D:18:59:90:94:12:17:04:76:12:5B:D5:D5:38:23:00:E8
Alternative Names
89 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

89 domains
theringer.it *.theringer.it *.analytic.theringer.it *.backend.theringer.it *.data.theringer.it *.demo.theringer.it *.staging.theringer.it *.superset.theringer.it

Other domains in certificate

1kph.com *.1kph.com
1looksa.com *.1looksa.com
adiosbetgiris.biz *.adiosbetgiris.biz
alibahisgiris.biz *.alibahisgiris.biz
*.animetak.animetak.com animetak.com *.animetak.com *.ns2.animetak.com
atmyretailer.com *.atmyretailer.com *.video.atmyretailer.com
betkom204.com *.betkom204.com
blumlux.com *.blumlux.com *.m.blumlux.com
brbang.co *.brbang.co *.ww38.brbang.co
*.a.challenger.run challenger.run *.challenger.run *.sitemap.challenger.run
ciprobetgiris.biz *.ciprobetgiris.biz
*.app.d-c.it *.backend.d-c.it d-c.it *.d-c.it *.d-qwe.d-c.it *.hostmaster.d-c.it *.staging.d-c.it *.tse-khaco.d-c.it
duflix.xyz *.duflix.xyz
*.backup.economdigest.com *.com.economdigest.com economdigest.com *.economdigest.com *.hostmaster.economdigest.com *.key.economdigest.com
humana-dent.com *.humana-dent.com *.ww38.humana-dent.com
jogos-poki.com *.jogos-poki.com
*.71131ba8-ce02-4cd3-a293-c4718f876c12.kitchenaccessories.shop *.9e566af2-8ca8-46dd-8eff-629ab334708f.kitchenaccessories.shop *.blog.kitchenaccessories.shop *.demo.kitchenaccessories.shop *.dev.kitchenaccessories.shop *.hostmaster.kitchenaccessories.shop *.insight.kitchenaccessories.shop kitchenaccessories.shop *.kitchenaccessories.shop *.members.kitchenaccessories.shop *.test.kitchenaccessories.shop *.wp.kitchenaccessories.shop *.www.kitchenaccessories.shop
*.app.photophone.it *.backend.photophone.it *.dev.photophone.it photophone.it *.photophone.it *.webmail.photophone.it
sport11expert.com *.sport11expert.com
*.humsaathsaath.spree.marketing *.neilpetal.spree.marketing spree.marketing *.spree.marketing
syrflag.com *.syrflag.com
tvflix.tv *.tvflix.tv
welcometomyhouse.it *.welcometomyhouse.it